Soccer, Hoops Next to Seed Using MPR
August 6, 2019
By Rob Kaminski
MHSAA benchmarks editor
As the topic of seeding for MHSAA Tournaments continues to swirl in the air of numerous committee meetings on an annual basis, one of the primary concerns continues to focus on the simple question: “How?”
The MHSAA for years has been working behind the scenes on potential formulas which could best be used as a standardized tool to assist in measuring strengths of teams in a given sport.
This spring, the MHSAA introduced the Michigan Power Rating in the sport of Boys Lacrosse. The Representative Council approved limited seeding beginning in 2019-20 for girls and boys soccer and girls and boys basketball, and MPR will be the metric to determine which two teams must be seeded on opposite sides of District brackets in those sports.
“The boys lacrosse tournament has been seeded since it was added as an MHSAA-sponsored sport in 2005. The seeding is done by committee based on several criteria, one of which was statewide power rankings generated by a third-party website. In the Fall of 2018, that website ceased operation – it was the perfect opportunity for the MHSAA to develop its own data-driven, purely objective ratings system and incorporate that data into the seeding criteria,” said Cole Malatinsky, administrative assistant for the sport.
“The benefits of the new MPR system have been already mentioned – it is MHSAA controlled, simple, objective, and transparent, and it can be used by other MHSAA sports in the future.”
MPR is a computer rating formula similar to the popular RPI rating. MPR provides a way to measure a team’s strength relative to other teams, based on games played against other MHSAA tournament teams, largely on the strength of their opponents’ schedules. MPR is purely objective using only the game results listed on MHSAA.com – there is no subjective human element.
What is the basic MPR formula?
MPR is calculated using wins, losses and ties for games played between teams entered into the MHSAA tournament. The final MPR number is 25% of the team's winning percentage, plus 50% of its opponent's winning percentage, plus 25% of its opponent's opponent's winning percentage.
MPR = (.25 x W%) + (.50 x OW%) + (.25 x OOW%)
The MPR formula can be applied easily to other MHSAA team sports.
What game data is included in the formula? What game data is not?
MPR looks only at results between opponents entered into the MHSAA postseason tournament. Wins, losses and ties in multi-team shortened game tournaments (lacrosse, soccer) also count. Forfeits also are counted as wins and losses.
MPR does not use the specific scores of a game or the margin of victory in a game. The location of a game is not included in the MPR formula, and the formula weighs results at the beginning of the season the same as results at the end of the season. Scrimmages are not included.
Why use the MPR formula?
Different rating systems have been used in the past or have been recommended to the MHSAA. We wanted to have a rating system where the data was controlled and stored in house and could be used for any sport featuring head-to-head competitions.
With its own rating system the MHSAA also can control the different components of the formula, thus keeping the tenets of scholastic competition at the forefront (like not including margin of victory in the formula). Finally, by listing all scores and team schedules online, as well as showing the MPR calculator on each team schedule page, the ratings are transparent and can be replicated easily.
CALCULATING MPR
What are the detailed components of the MPR formula?
You need three numbers to calculate your MPR: winning percentage (W%), opponent’s winning percentage (OW%) and opponent’s opponent’s winning percentage (OOW%).
How do you calculate winning percentage (W%)?
Divide the number of wins by the number of total games played. A tie is worth half a win. For MPR purposes, find the winning percentage against all teams that will play in the MHSAA tournament (MPR W%). Games played against out-of-state teams, varsity “B” teams, junior varsity teams, non-school club teams, and any other non-MHSAA tournament participants should not be included when calculating winning percentage. W% should be an easy number to calculate.
How do you calculate opponent’s winning percentage (OW%)?
Average the winning percentages of a team's opponents. When calculating the winning percentage of a specific opponent, use the opponents "Adjusted Winning Percentage" (ADJ W%). Adjusted winning percentage eliminates all games the team played against that opponent (as well as its games against non-MHSAA opponents).
For instance, if the team beat an opponent with an overall record of 4-1, use a record of 4-0 (1.000) for that opponent. If the team lost to an opponent, use a record of 3-1 (.750). Find the ADJ W% for all opponents, and then take the average. If a team plays an opponent team twice, that opponent’s ADJ W% will be counted twice.
OW% is not calculated via the combined record of the opponents; instead take the average of all opponent’s winning percentages.
How do you calculate opponent’s opponent’s winning percentage (OOW%)?
Use the same process described above, except calculated for the opponents of a team's opponents. This number is much harder to manually calculate, so the OW% for every team is listed on the MPR page of the MHSAA website.
Again, simply take the average of all opponent’s OW%.
How often is MPR calculated?
MPR is calculated about every five minutes. Enter a score and a minutes later the team MPR and the MPR of all the team's opponents will update.
How much will my MPR change throughout the season?
You will see wild MPR swings in the beginning of the season, but after about 10 games played your MPR will start to level out. At 20 games played you will see very little movement with each additional game played.
My score is missing. How can it be added?
This is a crowd-sourced system. Any registered user of MHSAA.com can add a missing score. ADs, coaches, parents, students and fans all can login and enter a score for any game.
What are some common errors when calculating MPR?
When calculating your team’s winning percentage, only include games against MHSAA-tournament teams. When calculating your opponent’s winning percentage, don’t include the games they played against you. When calculating ties, count the game as a half-win and half-loss.
What happens if a game is cancelled?
Because the MPR system works off of averages, it will not make a difference in the final MPR if a game cannot be rescheduled. It would not penalize, nor benefit, any team involved in that scenario.
USING THE WEBSITE
Where can I find game scores?
A list of statewide scores for all sports can be found in the MHSAA Score Center. To find a schedule for any team click on “Schools & Schedules” in the top navigation bar, search for the school, then once on the school page click the sport. You can also see a list of all schools (with links to schedules), on the statewide MPR list.
“We continue to have great success in score reporting for varsity boys lacrosse contests. While we state that schedule submission and score reporting to MHSAA.com are required, athletic directors and coaches understand that in order for MPR data to be accurate, we need consistent and accurate score reporting,” said Malatinsky. “MHSAA.com is now the primary site for high school boys lacrosse schedules, results and ratings in the state.”
How should I use the statewide list of teams and MPR?
Linked to the boys soccer page (and eventually to be added for both basketball pages and girls soccer) is a statewide listing of all Michigan Power Ratings (MPR) for teams entered into the MHSAA postseason tournament for that sport. Linked on the MPR page is an explanation of the District draw formula, describing when and how teams will be placed on the bracket.
The MPR data updates every five minutes. Click on the column headings to sort the data. You also can use the drop-down menu to show teams in one Division, or type a District number in the box to filter teams for that District (Region for boys lacrosse).
You also can click on any school name to go to its schedule page.
How do I read the school schedule page?
The schedule at the top of the page shows the date and opponent for all scheduled games, and results for games already played. If results are missing, click “Submit Score” to add a game score.
Below the game schedule is the MPR Calculator. The calculator is split into three sections. The first section shows the three MPR component scores for the team, as well as the team’s current MPR score. The second section shows the MPR information for the team’s opponents – specifically, for the opponents the team already has played (actually, for games where scores have been submitted). Only these games are included in the MPR calculation.
The third section highlights future opponents. The MPR data for future opponents are not used in the MPR calculation for the team.
PHOTO: East Kentwood and Ann Arbor Skyline play for last season’s Division 1 boys soccer championship.
4-Sport Standout Salenbien Stacking Varsity Letters, Leading Adrian's Hoops Rise
By
Doug Donnelly
Special for MHSAA.com
January 8, 2026
ADRIAN – Ella Salenbien is very competitive.
And maybe a little stubborn.
Salenbien didn’t want to have to choose which sports to concentrate on at Adrian High School – so she picked them all. Salenbien is on track to graduate this spring with 16 varsity letters for the Maples – four each in volleyball, swimming, basketball and soccer.
“Sometimes a coach, even college coaches, would ask me if I was going to concentrate on swimming and I would say no,” Salenbien said. “I didn’t want to choose. I wanted to play them all.”
Salenbien hasn’t just played sports at Adrian; she’s set records and excelled. This winter, she’s leading something of a re-birth of basketball for the Maples, who are off to a 6-1 start, the best for the school in more than a decade, maybe two.
“It’s exciting,” she said. “We are definitely playing as a team. This is the third or fourth year that a lot of us have played together. We are all very close.”
Salenbien is closing in on 1,000 career points in basketball and is likely to set the Maples career rebounding record.
In volleyball, she finished with more than 1,000 career kills and 1,000 career digs. She holds five school records in swimming. Last spring she set the Adrian assists record in soccer with 17.
Playing four sports requires a lot of time management, communication and cooperation between coaches, which Salenbien says has been great.
“I send out a weekly schedule to my coaches and parents just so everyone knows what’s going on,” she said. “There are days where I might have swimming practice and volleyball practice, so I split my time. It’s never been a problem. I feel like it was a lot my freshman year, but after that I got the hang of it.”
Swimming evolved into her top sport and something she did year-round for years between varsity swimming with Adrian and club swimming, both outdoor and indoor.
“I’d swim for the (Lenawee County) Gators after my high school season,” she said. “I’d train and compete for the state meet, zone meet and national meet, which is in Greensboro, North Carolina. Then I would come back, take a short break, and go into soccer. There’s not a lot of breaks in between seasons. I don’t have a lot of down time.”
Salenbien isn’t one to ask for down time.
“I’m pretty competitive and like to stay busy,” she said.
She started swimming with the Maple Pride program at the age of 7.
“I picked it up fast and enjoyed it,” she said.
She’s developed into a sprinter in the pool. Salenbien finished third in both the 50 and 100-yard freestyles at the Lower Peninsula Division 3 Finals in November.
“I love the pace and jumping in the water and going as fast as I can,” she said. “I’m not a distance swimmer. There is a rush you get. I love anchoring a relay. I love it when I am one or two lengths behind when I dive in and I catch up and pass someone. I am swimming and I can look over and think, ‘I got this.’”
She committed to Hope College for swimming.
“My (college) coach even asked me if I was interested in talking to the volleyball coach,” she said. “I told him that I didn’t think so. I am kind of excited to have the chance to focus on swimming in college and see how I do.”
The daughter of Eric and Sarah Salenbien of Adrian has two younger siblings, both of whom are already deep into athletics. Ella likes to spend the summer at her grandmother’s lake house in the Irish Hills, especially in the water.
“I love tubing,” she said. “I sometimes will take a swim across the lake and back. It’s about two miles.”
Salenbien also works at a nursing home in Adrian and recently received her Certified Nurse Assistant certification.
The 17-year-old is happy to be focusing on basketball right now, especially with the Maples off to such a great start under second-year coach Caylie Boehmer, an Adrian graduate.
“She’s been great,” Salenbien said. “She played college basketball, so she has us practicing like they do in college. She leads us well.”
Boehmer called Salenbien an outstanding athlete and even better human being.
“She has been a huge asset to all the programs at Adrian that she has been a part of, and we are lucky to have her,” she said. “She is an extremely hard worker, fierce competitor and as tough as they come.”
Friday the Maples take on their biggest rival, Tecumseh, the reigning Division 2 champion and heavy favorite in the Southeastern Conference White.
“It’s going to be tough,” Salenbien said. “They are very good. I know a lot of the girls on the team. They are tough, but we have nothing to lose. We are just going to go out and do our best. We’re not going to back down.”
Doug Donnelly has served as a news and sports reporter at the Adrian Daily Telegram and the Monroe News for 30 years, including 10 years as city editor in Monroe. He's written a book on high school basketball in Monroe County and compiles record books for various schools in southeast Michigan. He is now publisher and editor of The Blissfield Advance, a weekly newspaper. E-mail him at [email protected] with story ideas for Jackson, Washtenaw, Hillsdale, Lenawee and Monroe counties.
PHOTOS (Top) Ella Salenbien swims a race this past season. (Middle) Salenbien (21) elevates for the opening tip at the start of a game against Dundee. (Photos provided by Salenbien family.)